US9041426B2 - Default current test method of impulse voltage mixed high voltage direct current converter valve - Google Patents

Default current test method of impulse voltage mixed high voltage direct current converter valve Download PDF

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US9041426B2
US9041426B2 US13/255,508 US201113255508A US9041426B2 US 9041426 B2 US9041426 B2 US 9041426B2 US 201113255508 A US201113255508 A US 201113255508A US 9041426 B2 US9041426 B2 US 9041426B2
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switch
valve
voltage
direct current
test
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US20130193998A1 (en
Inventor
Guang fu Tang
Kunpeng Zha
Jun Yang
Chong Gao
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
China EPRI Electric Power Engineering Co Ltd
Smart Grid Research Institute of SGCC
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
China EPRI Electric Power Engineering Co Ltd
Smart Grid Research Institute of SGCC
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/40—Testing power supplies
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/14—Circuits therefor, e.g. for generating test voltages, sensing circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/26—Testing of individual semiconductor devices
    • G01R31/2607—Circuits therefor
    • G01R31/263—Circuits therefor for testing thyristors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
    • G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
    • G01R31/333—Testing of the switching capacity of high-voltage circuit-breakers ; Testing of breaking capacity or related variables, e.g. post arc current or transient recovery voltage
    • G01R31/3333—Apparatus, systems or circuits therefor
    • G01R31/3336—Synthetic testing, i.e. with separate current and voltage generators simulating distance fault conditions

Definitions

  • the invention relates to a direct current converter valve testing method, in particular, relates to a default current testing method of the high voltage direct current converter valve composited by impulse voltage.
  • the default current test is concern to the thyristor valves design and fabrication level, and it is the important test method to improve its reliability.
  • the main objective is to the design is right when the valves afford the maximum current, voltage and temperature stress result from short circuit current.
  • the synthetic test concept is commonly used. And its basic idea is to use direct current source, default current source, high voltage source and so on, a sets of power system provides heating current, default current and the forward and reverse voltage for the converter valve, separately.
  • the synthetic test circuit can complete the two following trials:
  • the high voltage source of the test circuit is consisted of L-C oscillation circuit, and the high voltage waveform is symmetrical.
  • the forward and reverse voltage amplitude provided for the test sample are same after the default current is off.
  • the test valve first gets reverse voltage and then the voltage reaches the positive maximum value and the reverse voltage peak value less than positive peak value after experiencing default current, the test valve temperature reduces gradually in the process.
  • the reverse over high voltage provided by the test circuit is very adverse for the valve that has withstood temperature default current, and that may damages the test valve.
  • the time of the valve withstands positive voltage peak is after 5 ms the reverse voltage passed in actual working condition.
  • in order to achieve the requirement must modify the circuit parameters, which results in the investment increase and test operation inconvenience.
  • the invention provides a default current testing method of the high voltage direct current converter valve composited by impulse voltage, it composes the symmetrical positive and negative voltage and the impulse voltage into asymmetric positive and negative high voltage, and the time of the impulse voltage can be chosen arbitrarily, the amplitude is continuously adjustable according to need, which can make the test valve voltage accurately achieve required peak value at the given moment.
  • the test method is flexible, safe, and suitable for different DC project converter valves.
  • a default current testing method of the high voltage direct current converter valve composed by impulse voltage provided by the invention comprises a test valve 1 , a direct current source 2 , an auxiliary valve 3 , and a default current source 4 , is characterized that, wherein said method also includes a surge generator 5 ; Said surge generator 5 is connected with said test valve 1 in parallel, and then connected with said auxiliary valve 3 in series; Said test valve 1 and said auxiliary valve 3 are connected in series as the bridge arm of the 6 pulse bridges rectifier B 6 in the direct current source 2 .
  • the inductor L of said default current source 4 is connected with said surge generator 5 in parallel.
  • said default current source 4 includes a direct current voltage source T 1 , voltage regulator T 2 , capacitors, a reactor, isolation valves, a resistor and switches;
  • Capacitors include capacitor C 1 , C 2 and C 3 connected with each other in parallel, the reactor is L, the isolation valves include V 1 , V 2 , and V 3 connected with each other in parallel, the resistor is R, the switches include S 1 , S 2 , and S 3 connected with each other in parallel;
  • Said isolation valve V 1 , V 2 and V 3 , capacitor C 1 , C 2 and C 3 , switches S 1 , S 2 , and S 3 are connected with the reactor L in series;
  • Said resistor R is connected with switches S 1 , S 2 , and S 3 in series;
  • the output end of said direct current voltage source T 1 is connected with the resistor R; said switch S 1 , S 2 , and S 3 are connected with the isolation valve V 1 , V 2 and V 3 , respectively;
  • said voltage regulator T 2 includes
  • said direct current source ( 2 ) in said test device comprises a large current transformer T, breakers, discounters, limiting reactors, reactor Lh and L 1 , and a 6 pulse bridges rectifier B 6 ; Said large current transformer T, breakers, discounters, and limiting reactors are connected in series; the output ends of the 6 pulse bridges rectifier B 6 are connected with the reactor Lh and L 1 , respectively.
  • the DC current source 2 sets up and makes the output current to reach heating current value, turn on the switches of the default current source 4 to make the capacitors charge, and the voltage of the capacitors required value;
  • test valve 1 After the test valve 1 is heated to a certain junction temperature, turn on the auxiliary valve V 1 , V 2 and V 3 of the default current source 4 , and the default current passes the test valve 1 , and produces default voltage of the test valve 1 ;
  • step A in said step A, turn on the switch S 1 of the default current source ( 4 ) to charge the capacitor C 1 , and the voltage of C 1 is up to required value in single wave default current test; While in three waves default current test, turn on the switch S 1 , S 2 and S 3 of the f— default current source ( 4 ) and charge the capacitor C 1 , C 2 , and C 3 , respectively and the voltage of C 1 , C 2 , and C 3 are all up to required value.
  • the default current source 4 provides reverse voltage and part of forward voltage for the test valve 1 in single wave default current test;
  • said impulse voltage is forward voltage in single wave default current test;
  • said impulse voltage is reverse voltage, and is supplied for the test valve 1 after the second default current passing.
  • the symmetrical positive and negative voltage, and the impulse compose asymmetric positive and negative high voltage, it makes the test valve voltage accurately achieve required peak value at the set time.
  • the default current testing method of the high voltage direct current converter valve composed by impulse voltage provided by the invention whose test circuit is simple relatively, saves the high voltage source than the common default current test circuit by surge generators instead of the high voltage source, the symmetrical positive and negative voltage and the impulse voltage is composed into asymmetric positive and negative high voltage, and the time of the impulse voltage can be chosen arbitrarily, the amplitude is continuously adjustable according to need, which can make the test valve voltage accurately achieve required peak value at the given moment.
  • the test method is flexible, safe, and suitable for different DC project converter valves.
  • FIG. 1 is the default current testing device of the high voltage direct current converter valve composed by impulse voltage
  • FIG. 2 is the waveform of subsequent locking single wave default current test
  • FIG. 3 is the waveform of no-subsequent locking multi wave default current test
  • the device includes a test valve 1 , a direct current source 2 , an auxiliary valve 3 , a default current source 4 and a surge generator 5 .
  • the surge generator 5 is connected with the test valve 1 in parallel, and then connected with the auxiliary valve 3 in series.
  • the test valve 1 and the auxiliary valve 3 are connected in series as the bridge arm of the pulse bridge rectifier B 6 in the direct current source 2 .
  • the inductor L of the default current source 4 is connected with the surge generator 5 in parallel.
  • the direct current (DC) source 2 provides the heating current for the test valve 1 to ensure the junction temperature up to a base value before the default current coming.
  • the auxiliary valve 3 will isolate the DC current source 2 after the heating current off.
  • the default current source 4 will provide default current for the test valve 1 , and it will also provide reverse voltage and part of forward voltage for the test valve 1 in single wave default current test.
  • the surge generator 5 provides the impulse voltage for the test valve 1 , in single wave default current the impulse is forward voltage, the voltage and the forward voltage provided by the default current source 4 compose a forward voltage for the test valve 1 to restrain a largest amplitude single wave default current. In three waves default current test, the impulse voltage is reverse voltage, and it adds onto test valve 1 after the second default current.
  • FIG. 2 shows the waveform of subsequent locking single wave default current test.
  • the impulse voltage is forward voltage
  • It and the forward voltage provided by the default current source compose the test valve forward voltage, to inhibit a maximum amplitude single wave default current, beginning with the highest temperature and then locking the forward and reverse voltage including any over voltage due to load rejection.
  • the DC current source 2 sets to working and to make the output current reach heating current value, turning on the switch S 1 of the default current source 4 to make the capacitor C 1 charge and the voltage reach required value;
  • FIG. 3 shows the waveform of no-subsequent locking multi wave default current test.
  • the impulse voltage is reverse voltage, and it adds onto test valve 1 after the second default current. Same to the single wave test conditions, it there has being multi default current until the breaker is off, but there is no more forward voltage.
  • the DC current source 2 sets to working to make the output current reach heating current value, turn on the switches S 1 , S 2 , S 3 of the default current source 4 to make the capacitor C 1 , C 2 and C 3 charge, and the voltages reach required value;
  • the test circuit provided by the invention is simple, the high voltage source of the default current test circuit is instead by surge generators, and it solves the reverse and forward voltage symmetrical problems of the test valve, which makes the test safer. Because the time of the impulse voltage, and the amplitude are both continuously adjustable, which make the test valve voltage accurately achieve required peak value at the set time.
  • the test method is flexible, safe, and suitable for different DC project converter valves.

Abstract

The present invention provides to a default current testing method of the high voltage direct current converter valve composited by impulse voltage. The technical scheme of the invention composites the symmetrical positive and negative voltage and the impulse into asymmetric positive and negative high voltage, it makes the test valve voltage accurately achieve required peak value at the set time. The test circuit is simple relatively; the high voltage source of the default current test circuit is instead by surge generators. The test method is flexible, safe, and suitable for different DC project converter valves.

Description

FIELD OF THE INVENTION
The invention relates to a direct current converter valve testing method, in particular, relates to a default current testing method of the high voltage direct current converter valve composited by impulse voltage.
BACKGROUND OF THE INVENTION
With the wide application of the high voltage direct current transmission technology in the electrical power system, the reliability of the core part—the high voltage and high power thyristor valves become the key of the system safety. The default current test is concern to the thyristor valves design and fabrication level, and it is the important test method to improve its reliability. The main objective is to the design is right when the valves afford the maximum current, voltage and temperature stress result from short circuit current. At present, in the default current test the synthetic test concept is commonly used. And its basic idea is to use direct current source, default current source, high voltage source and so on, a sets of power system provides heating current, default current and the forward and reverse voltage for the converter valve, separately. The synthetic test circuit can complete the two following trials:
a) Subsequent locking single wave default current test inhibiting a maximum amplitude single wave default current, beginning with the highest temperature and then locking the forward and reverse voltage including any over voltage due to load rejection;
b) Non-subsequent locking multiwave default current test: under the same test condition to the single wave test, existing multi-wave default current before the breaker trips, but no more positive voltage supply.
At present, the high voltage source of the test circuit is consisted of L-C oscillation circuit, and the high voltage waveform is symmetrical. For the single wave default current test, the forward and reverse voltage amplitude provided for the test sample are same after the default current is off. But under the actual working condition, the test valve first gets reverse voltage and then the voltage reaches the positive maximum value and the reverse voltage peak value less than positive peak value after experiencing default current, the test valve temperature reduces gradually in the process. General speaking, the reverse over high voltage provided by the test circuit is very adverse for the valve that has withstood temperature default current, and that may damages the test valve. In addition, the time of the valve withstands positive voltage peak is after 5 ms the reverse voltage passed in actual working condition. For normal synthetic test circuit, in order to achieve the requirement must modify the circuit parameters, which results in the investment increase and test operation inconvenience.
SUMMARY OF THE INVENTION
The invention provides a default current testing method of the high voltage direct current converter valve composited by impulse voltage, it composes the symmetrical positive and negative voltage and the impulse voltage into asymmetric positive and negative high voltage, and the time of the impulse voltage can be chosen arbitrarily, the amplitude is continuously adjustable according to need, which can make the test valve voltage accurately achieve required peak value at the given moment. The test method is flexible, safe, and suitable for different DC project converter valves.
A default current testing method of the high voltage direct current converter valve composed by impulse voltage provided by the invention, the device used for said test method comprises a test valve 1, a direct current source 2, an auxiliary valve 3, and a default current source 4, is characterized that, wherein said method also includes a surge generator 5; Said surge generator 5 is connected with said test valve 1 in parallel, and then connected with said auxiliary valve 3 in series; Said test valve 1 and said auxiliary valve 3 are connected in series as the bridge arm of the 6 pulse bridges rectifier B6 in the direct current source 2. The inductor L of said default current source 4 is connected with said surge generator 5 in parallel.
In the first preferably technical solution provided by the invention: said default current source 4 includes a direct current voltage source T1, voltage regulator T2, capacitors, a reactor, isolation valves, a resistor and switches; Capacitors include capacitor C1, C2 and C3 connected with each other in parallel, the reactor is L, the isolation valves include V1, V2, and V3 connected with each other in parallel, the resistor is R, the switches include S1, S2, and S3 connected with each other in parallel; Said isolation valve V1, V2 and V3, capacitor C1, C2 and C3, switches S1, S2, and S3 are connected with the reactor L in series; Said resistor R is connected with switches S1, S2, and S3 in series; the output end of said direct current voltage source T1 is connected with the resistor R; said switch S1, S2, and S3 are connected with the isolation valve V1, V2 and V3, respectively; said voltage regulator T2 is connected with said direct current voltage source T1 in parallel.
In the second preferably technical solution provided by the invention: said direct current source (2) in said test device comprises a large current transformer T, breakers, discounters, limiting reactors, reactor Lh and L1, and a 6 pulse bridges rectifier B6; Said large current transformer T, breakers, discounters, and limiting reactors are connected in series; the output ends of the 6 pulse bridges rectifier B6 are connected with the reactor Lh and L1, respectively.
The third preferably technical solution provided by the invention, said method comprises following steps:
A, The DC current source 2 sets up and makes the output current to reach heating current value, turn on the switches of the default current source 4 to make the capacitors charge, and the voltage of the capacitors required value;
B, Turn on said auxiliary valve 3, the current provided by the DC current source 2 passes the test valve 1 and heats it;
C, After the test valve 1 is heated to a certain junction temperature, turn on the auxiliary valve V1, V2 and V3 of the default current source 4, and the default current passes the test valve 1, and produces default voltage of the test valve 1;
D, Triging said surge generator 5, the surge generator 5 provides impulse voltage for the test valve 1, and it and the default voltage of the default current source 4 compose the voltage of the test valve 1.
In the fourth preferable technical solution provided by the invention: in said step A, turn on the switch S1 of the default current source (4) to charge the capacitor C1, and the voltage of C1 is up to required value in single wave default current test; While in three waves default current test, turn on the switch S1, S2 and S3 of the f— default current source (4) and charge the capacitor C1, C2, and C3, respectively and the voltage of C1, C2, and C3 are all up to required value.
In the fifth preferable technical solution provided by the invention: in said step C, the default current source 4 provides reverse voltage and part of forward voltage for the test valve 1 in single wave default current test; In said step D, said impulse voltage is forward voltage in single wave default current test; In three wave default current test, said impulse voltage is reverse voltage, and is supplied for the test valve 1 after the second default current passing.
In the sixth preferable technical solution provided by the invention: in said method, the symmetrical positive and negative voltage, and the impulse compose asymmetric positive and negative high voltage, it makes the test valve voltage accurately achieve required peak value at the set time.
The default current testing method of the high voltage direct current converter valve composed by impulse voltage provided by the invention, whose test circuit is simple relatively, saves the high voltage source than the common default current test circuit by surge generators instead of the high voltage source, the symmetrical positive and negative voltage and the impulse voltage is composed into asymmetric positive and negative high voltage, and the time of the impulse voltage can be chosen arbitrarily, the amplitude is continuously adjustable according to need, which can make the test valve voltage accurately achieve required peak value at the given moment. The test method is flexible, safe, and suitable for different DC project converter valves.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is the default current testing device of the high voltage direct current converter valve composed by impulse voltage;
FIG. 2 is the waveform of subsequent locking single wave default current test;
FIG. 3 is the waveform of no-subsequent locking multi wave default current test;
 DETAILED DESCRIPTION OF EMBODIMENTS
The detail of the embodiments is described as below incorporated with the figures by way of cross-reference for the present invention.
It shows the default current testing device of the high voltage direct current converter valve composited by impulse voltage, the device includes a test valve 1, a direct current source 2, an auxiliary valve 3, a default current source 4 and a surge generator 5. The surge generator 5 is connected with the test valve 1 in parallel, and then connected with the auxiliary valve 3 in series. The test valve 1 and the auxiliary valve 3 are connected in series as the bridge arm of the pulse bridge rectifier B6 in the direct current source 2. The inductor L of the default current source 4 is connected with the surge generator 5 in parallel.
In test the direct current (DC) source 2 provides the heating current for the test valve 1 to ensure the junction temperature up to a base value before the default current coming. The auxiliary valve 3 will isolate the DC current source 2 after the heating current off. When the test valve 1 is heated a certain temperature, the default current source 4 will provide default current for the test valve 1, and it will also provide reverse voltage and part of forward voltage for the test valve 1 in single wave default current test. The surge generator 5 provides the impulse voltage for the test valve 1, in single wave default current the impulse is forward voltage, the voltage and the forward voltage provided by the default current source 4 compose a forward voltage for the test valve 1 to restrain a largest amplitude single wave default current. In three waves default current test, the impulse voltage is reverse voltage, and it adds onto test valve 1 after the second default current.
FIG. 2 shows the waveform of subsequent locking single wave default current test. In single wave default current test the impulse voltage is forward voltage, and It and the forward voltage provided by the default current source compose the test valve forward voltage, to inhibit a maximum amplitude single wave default current, beginning with the highest temperature and then locking the forward and reverse voltage including any over voltage due to load rejection.
The steps of the single wave default current test are as follows:
1) The DC current source 2 sets to working and to make the output current reach heating current value, turning on the switch S1 of the default current source 4 to make the capacitor C1 charge and the voltage reach required value;
2) The auxiliary valve 3 turned on, the current provided by the DC current source 2 passes the test valve 1 and preheats it;
3) After that, the auxiliary valve 3 is turned off, turning on the auxiliary valve V1 of the default current source 4 to make the test valve 1 bear the default current;
4) The default current is extinguished to make the voltage of charge capacitor reverse and the test valve 1 bear reverse voltage;
5) The capacitor C1 is charged again to make the voltage reach the value before default
6) 5 ms after the default current passing, trigging the surge generator 5, and provides the forward impulse voltage for the test valve 1;
FIG. 3 shows the waveform of no-subsequent locking multi wave default current test. In three waves default current test, the impulse voltage is reverse voltage, and it adds onto test valve 1 after the second default current. Same to the single wave test conditions, it there has being multi default current until the breaker is off, but there is no more forward voltage.
The steps of the three waves default current test are as follows:
1) The DC current source 2 sets to working to make the output current reach heating current value, turn on the switches S1, S2, S3 of the default current source 4 to make the capacitor C1, C2 and C3 charge, and the voltages reach required value;
2) Turn on the auxiliary valve 3, the current provided by the DC current source 2 passes the test valve 1 and preheats it;
3) After that, turn off the auxiliary valve 3, turn on the auxiliary valve V1 of the default current source 4 to make the test valve 1 bear the first default current pass;
4) Turn on the auxiliary valve V2 of the default current source 4 to make the test valve 1 the bear second default current pass;
5) 5 ms after the default current passing, trigging the surge generator 5, and provides the reverse impulse voltage for the test valve 1;
6) Turn on the auxiliary valve V3 of the default current source 4, and the three default current passes the test valve 1;
The test circuit provided by the invention is simple, the high voltage source of the default current test circuit is instead by surge generators, and it solves the reverse and forward voltage symmetrical problems of the test valve, which makes the test safer. Because the time of the impulse voltage, and the amplitude are both continuously adjustable, which make the test valve voltage accurately achieve required peak value at the set time. The test method is flexible, safe, and suitable for different DC project converter valves.
At last, in this description of the embodiments, we have detail describe the present invention according to a particular example. The detail embodiment is one example of the invention but not the only one, so the person in this field must be understand that all the alternatives and other equal and/or similar examples are all within the range of the invention and they are all consistent with the spirits of this invention, are all protected by our claims.

Claims (7)

The invention claimed is:
1. A default current testing apparatus for testing the high voltage direct current converter valve by impulse voltage, the apparatus comprising:
a test valve;
a direct current source;
an auxiliary valve;
a default current source; and
a surge generator, wherein the said surge generator is connected with said test valve in parallel, and is connected with said auxiliary valve;
wherein the default current source includes
a direct current voltage source;
a voltage regulator;
a capacitor;
a reactor;
a plurality of isolation valves including a first isolation valve, a second isolation valve and a third isolation valve each connected with each other in parallel;
a resistor;
a plurality of switches including a first switch, a second switch and a third switch each connected with each other in parallel; and
a plurality of capacitors including a first capacity, a second capacity and a third capacity each connected with each other in parallel,
wherein each of the first isolation valve, the second isolation value and third isolation valve, the first capacitor, the second capacitor and the third capacitor, the first switch, the second switch, and the third switch is connected with the reactor in series;
wherein the resistor is connected with the first switch, the second switch and the third switch in series;
wherein an output end of the direct current voltage source is connected with the resistor;
wherein the first switch, the second switch and the third switch are connected with the first isolation valve, the second isolation valve and the third isolation valve; and
wherein the voltage regulator is connected with the direct current voltage source in parallel.
2. The default current testing apparatus of claim 1, wherein said test valve connects with said auxiliary valve to form as a bridge arm of a pulse bridges rectifier in said direct current source, and an inductor of said default current source connects with said surge generator in parallel.
3. A default current testing device for testing the high voltage direct current converter valve by impulse voltage, the device comprising:
a test valve;
a direct current source;
an auxiliary valve;
a default current source; and
a surge generator, wherein the said surge generator is connected with said test valve in parallel, and is connected with said auxiliary valve,
wherein the default current source includes
a direct current voltage source;
a voltage regulator;
a capacitor;
a reactor;
a plurality of isolation valves including a first isolation valve, a second isolation valve and a third isolation valve each connected with each other in parallel;
a resistor;
a plurality of switches including a first switch, a second switch and a third switch each connected with each other in parallel; and
a plurality of capacitors including a first capacity, a second capacity and a third capacity each connected with each other in parallel,
wherein each of the first isolation valve, the second isolation value and third isolation valve, the first capacitor, the second capacitor and the third capacitor, the first switch, the second switch, and the third switch is connected with the reactor in series;
wherein the resistor is connected with the first switch, the second switch and the third switch in series;
wherein an output end of the direct current voltage source is connected with the resistor;
wherein the first switch, the second switch and the third switch are connected with the first isolation valve, the second isolation valve and the third isolation valve; and
wherein the voltage regulator is connected with the direct current voltage source in parallel.
4. The default current apparatus of claim 1, wherein the direct current voltage source includes:
a large current transformer;
one or more breakers;
one or more discounters;
one or more limiting reactors; and
a pulse bridge rectifier,
wherein the large current transformer, the one or more breakers, the one or more discounters, and one or more reactors are connected in series.
5. A default current testing system for testing the high voltage direct current converter valve by impulse voltage, the system comprising:
a test valve;
a direct current source;
an auxiliary valve;
a default current source; and
a surge generator, wherein the said surge generator is connected with said test valve in parallel, and is connected with said auxiliary valve;
wherein the default current source includes
a direct current voltage source;
a voltage regulator;
a capacitor;
a reactor;
a plurality of isolation valves including a first isolation valve, a second isolation valve and a third isolation valve each connected with each other in parallel;
a resistor;
a plurality of switches including a first switch, a second switch and a third switch each connected with each other in parallel; and
a plurality of capacitors including a first capacity, a second capacity and a third capacity each connected with each other in parallel,
wherein each of the first isolation valve, the second isolation value and third isolation valve, the first capacitor, the second capacitor and the third capacitor, the first switch, the second switch, and the third switch is connected with the reactor in series;
wherein the resistor is connected with the first switch, the second switch and the third switch in series;
wherein an output end of the direct current voltage source is connected with the resistor;
wherein the first switch, the second switch and the third switch are connected with the first isolation valve, the second isolation valve and the third isolation valve; and
wherein the voltage regulator is connected with the direct current voltage source in parallel.
6. The default current testing system of claim 1, wherein said test valve connects with said auxiliary valve to form as a bridge arm of a pulse bridges rectifier in said direct current source, and an inductor of said default current source connects with said surge generator in parallel.
7. The default current system of claim 5, wherein the direct current voltage source includes:
a large current transformer;
one or more breakers;
one or more discounters;
one or more limiting reactors; and
a pulse bridge rectifier,
wherein the large current transformer, the one or more breakers, the one or more discounters, and one or more reactors are connected in series.
US13/255,508 2010-12-01 2011-06-16 Default current test method of impulse voltage mixed high voltage direct current converter valve Expired - Fee Related US9041426B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN2010105668.5 2010-10-01
CN201010576687 2010-12-01
CN201010576687.5A CN102486517B (en) 2010-12-01 2010-12-01 The high voltage direct current transmission converter valve fault current testing method of surge voltage compound
PCT/CN2011/001001 WO2012071773A1 (en) 2010-12-01 2011-06-16 Impulse voltage combined fault current test method for high voltage direct current transmission converter valve

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130314111A1 (en) * 2012-05-22 2013-11-28 Myongji University Industry And Academia Cooperation Foundation Apparatus for testing thyristor valve

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9880061B2 (en) * 2013-06-14 2018-01-30 Hrl Laboratories, Llc Methods and apparatus for sensing the internal temperature of an electrochemical device
US10222426B2 (en) * 2013-06-14 2019-03-05 Hrl Laboratories, Llc Double-pulse technique for on-line diagnostics of electrochemical systems
CN104422849A (en) * 2013-09-09 2015-03-18 南京南瑞继保电气有限公司 Short circuit simulation test circuit and test method thereof
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CN113358996B (en) * 2021-05-28 2024-03-12 特变电工西安柔性输配电有限公司 Universal testing device and method for power module of flexible direct current converter valve

Citations (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3461384A (en) * 1966-01-31 1969-08-12 Siemens Ag Arrangement for the transmission of measured variable produced by the current flowing in a high-voltage line from the high-voltage side to the low-voltage side
US3590359A (en) * 1968-12-24 1971-06-29 Bbc Brown Boveri & Cie Current converter for transforming three-phase alternating current into direct current
US4056776A (en) * 1974-12-12 1977-11-01 Asea Aktiebolag Combination of a thyristor connection and a test device
US4392175A (en) * 1979-12-10 1983-07-05 Tokyo Shibaura Denki Kabushiki Kaisha Protecting device for a gate turn-off thyristor
US4471301A (en) * 1981-12-11 1984-09-11 Vsesojuzny Elektrotekhnichesky Institut Device for monitoring thyristors of high-voltage valve
US4600917A (en) * 1982-10-30 1986-07-15 Tokyo Shibaura Denki Kabushiki Kaisha Gate-turn-off thyristor failure detecting circuit
US4884025A (en) * 1986-06-06 1989-11-28 Asea Brown Boveri Ag Process for the fault monitoring of an electric valve
US5384528A (en) * 1992-05-20 1995-01-24 Siemens Aktiengessellschaft Method and apparatus for recognizing defects in a triggering system of a controlled series compensator
US5521526A (en) * 1992-08-31 1996-05-28 Asea Brown Boveri Ab Method and a device for checking the condition of semiconductor valves
US5986903A (en) * 1997-03-24 1999-11-16 Asea Brown Boveri Ab Control apparatus for a converter for transmitting electric power between an alternating voltage network and a direct voltage network
US6040639A (en) * 1995-09-29 2000-03-21 Telefonaktiebolaget Lm Ericsson Circuit for improved load transient response in power supplies
US6205039B1 (en) * 1997-06-11 2001-03-20 Abb Ab Device for supervising a high voltage converter station
US6459175B1 (en) * 1997-11-17 2002-10-01 Patrick H. Potega Universal power supply
US6545884B2 (en) * 2000-03-09 2003-04-08 Ecoair Corp. Alternator system
US6567759B2 (en) * 2001-03-29 2003-05-20 Siemens Energy & Automation, Inc. Motorized machine electrical system arc detection apparatus and methods
US6633824B2 (en) * 2001-03-29 2003-10-14 Siemens Energy & Automation, Inc. Direct current electrical system arc detection apparatus and method
US6654222B2 (en) * 1999-01-28 2003-11-25 Forschungszentrum Karlsruhe Gmbh Current limiter with electric valves for limiting the short-circuit current in an electric power circuit
US20040227538A1 (en) * 2003-05-13 2004-11-18 Harris Philip M. Test apparatus for evaluating voltage regulators
US20060071682A1 (en) * 2003-05-21 2006-04-06 Advantest Corporation Current measurement device and test device
US20070013409A1 (en) * 2005-07-13 2007-01-18 Samsung Electronics Co., Ltd. Digitally controlled high-voltage power supply and method therefor
US20070253131A1 (en) * 2004-12-04 2007-11-01 Klaus-Peter Juengst Current limiter for limiting current in case of a fault
US20080074133A1 (en) * 2006-06-27 2008-03-27 Advantest Corporation Voltage generating apparatus, current generating apparatus, and test apparatus
US7397267B2 (en) * 2005-10-17 2008-07-08 Hon Hai Precision Industry Co., Ltd. Voltage detecting circuit
US20080204064A1 (en) * 2007-02-27 2008-08-28 Samsung Electronics Co., Ltd. Test system and high voltage measurement method
US7443692B2 (en) * 2003-05-16 2008-10-28 Continental Automotive Systems Us, Inc. Power converter architecture employing at least one capacitor across a DC bus
US20080284392A1 (en) * 2005-03-16 2008-11-20 Kohzoh Itoh Constant voltage power supply circuit and method of testing the same
US20090058454A1 (en) * 2007-08-31 2009-03-05 Sang Bae An Device power supply extension circuit, test system including the same and method of testing semiconductor devices
US20090140745A1 (en) * 2007-11-30 2009-06-04 Caterpillar Inc. Power converter current sensor testing method
US20090179660A1 (en) * 2001-12-20 2009-07-16 Murari Kejariwal Non-invasiv, low pin count test circuits and methods utilizing emulated stress conditions
US7750501B2 (en) * 2005-10-27 2010-07-06 Continental Automotive Systems Us, Inc. System and method of over voltage control for a power system
US7821282B2 (en) * 2005-03-30 2010-10-26 Panasonic Corporation Inverter that calculates an average value of direct current DC
US8044678B2 (en) * 2007-10-03 2011-10-25 Chroma Ate Inc. Device for simulating rectified constant impedance load and method thereof
US8120380B2 (en) * 2000-03-30 2012-02-21 Seagate Technology Llc Comprehensive application power tester
US8217677B2 (en) * 2007-07-30 2012-07-10 Manta Test Systems Inc. System and method for modulating a power supply in a relay test system
US8604821B2 (en) * 2009-01-13 2013-12-10 Seiko Instruments Inc. Power supply voltage monitoring circuit and electronic circuit including the power supply voltage monitoring circuit

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE518628C2 (en) * 2001-02-21 2002-11-05 Abb Ab Test circuit for HVDC thyristor valves and method for synthetic testing
US8098504B2 (en) * 2006-01-18 2012-01-17 Abb Technology Ltd. Converter station for connecting an AC system to an end of an HVDC transmission line
CN201130221Y (en) * 2007-09-20 2008-10-08 中国电力科学研究院 DC flow-exchanging valve low voltage parameter service test apparatus
CN201075124Y (en) * 2007-09-21 2008-06-18 中国电力科学研究院 Transient forward voltage tester for recuperation duration of DC converter valve
CN101187690B (en) * 2007-11-28 2010-06-02 中国电力科学研究院 DC converter valve restoration period transient forward voltage test method
CN101706541B (en) * 2009-12-04 2012-12-26 中国电力科学研究院 Detection device for fault current experiment of direct-current transmission converter valve
CN201903609U (en) * 2010-12-01 2011-07-20 中国电力科学研究院 Impulse voltage compound high-voltage direct current transmission converter valve fault current tester

Patent Citations (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3461384A (en) * 1966-01-31 1969-08-12 Siemens Ag Arrangement for the transmission of measured variable produced by the current flowing in a high-voltage line from the high-voltage side to the low-voltage side
US3590359A (en) * 1968-12-24 1971-06-29 Bbc Brown Boveri & Cie Current converter for transforming three-phase alternating current into direct current
US4056776A (en) * 1974-12-12 1977-11-01 Asea Aktiebolag Combination of a thyristor connection and a test device
US4392175A (en) * 1979-12-10 1983-07-05 Tokyo Shibaura Denki Kabushiki Kaisha Protecting device for a gate turn-off thyristor
US4471301A (en) * 1981-12-11 1984-09-11 Vsesojuzny Elektrotekhnichesky Institut Device for monitoring thyristors of high-voltage valve
US4600917A (en) * 1982-10-30 1986-07-15 Tokyo Shibaura Denki Kabushiki Kaisha Gate-turn-off thyristor failure detecting circuit
US4884025A (en) * 1986-06-06 1989-11-28 Asea Brown Boveri Ag Process for the fault monitoring of an electric valve
US5384528A (en) * 1992-05-20 1995-01-24 Siemens Aktiengessellschaft Method and apparatus for recognizing defects in a triggering system of a controlled series compensator
US5521526A (en) * 1992-08-31 1996-05-28 Asea Brown Boveri Ab Method and a device for checking the condition of semiconductor valves
US6040639A (en) * 1995-09-29 2000-03-21 Telefonaktiebolaget Lm Ericsson Circuit for improved load transient response in power supplies
US5986903A (en) * 1997-03-24 1999-11-16 Asea Brown Boveri Ab Control apparatus for a converter for transmitting electric power between an alternating voltage network and a direct voltage network
US6205039B1 (en) * 1997-06-11 2001-03-20 Abb Ab Device for supervising a high voltage converter station
US6459175B1 (en) * 1997-11-17 2002-10-01 Patrick H. Potega Universal power supply
US6654222B2 (en) * 1999-01-28 2003-11-25 Forschungszentrum Karlsruhe Gmbh Current limiter with electric valves for limiting the short-circuit current in an electric power circuit
US6545884B2 (en) * 2000-03-09 2003-04-08 Ecoair Corp. Alternator system
US8120380B2 (en) * 2000-03-30 2012-02-21 Seagate Technology Llc Comprehensive application power tester
US6567759B2 (en) * 2001-03-29 2003-05-20 Siemens Energy & Automation, Inc. Motorized machine electrical system arc detection apparatus and methods
US6633824B2 (en) * 2001-03-29 2003-10-14 Siemens Energy & Automation, Inc. Direct current electrical system arc detection apparatus and method
US20090179660A1 (en) * 2001-12-20 2009-07-16 Murari Kejariwal Non-invasiv, low pin count test circuits and methods utilizing emulated stress conditions
US20040227538A1 (en) * 2003-05-13 2004-11-18 Harris Philip M. Test apparatus for evaluating voltage regulators
US7443692B2 (en) * 2003-05-16 2008-10-28 Continental Automotive Systems Us, Inc. Power converter architecture employing at least one capacitor across a DC bus
US20060071682A1 (en) * 2003-05-21 2006-04-06 Advantest Corporation Current measurement device and test device
US7327542B2 (en) * 2004-12-04 2008-02-05 Forschungazentrum Karlsruhe Gmbh Current limiter for limiting current in case of a fault
US20070253131A1 (en) * 2004-12-04 2007-11-01 Klaus-Peter Juengst Current limiter for limiting current in case of a fault
US20080284392A1 (en) * 2005-03-16 2008-11-20 Kohzoh Itoh Constant voltage power supply circuit and method of testing the same
US7821282B2 (en) * 2005-03-30 2010-10-26 Panasonic Corporation Inverter that calculates an average value of direct current DC
US20070013409A1 (en) * 2005-07-13 2007-01-18 Samsung Electronics Co., Ltd. Digitally controlled high-voltage power supply and method therefor
US7397267B2 (en) * 2005-10-17 2008-07-08 Hon Hai Precision Industry Co., Ltd. Voltage detecting circuit
US7750501B2 (en) * 2005-10-27 2010-07-06 Continental Automotive Systems Us, Inc. System and method of over voltage control for a power system
US20080074133A1 (en) * 2006-06-27 2008-03-27 Advantest Corporation Voltage generating apparatus, current generating apparatus, and test apparatus
US20080204064A1 (en) * 2007-02-27 2008-08-28 Samsung Electronics Co., Ltd. Test system and high voltage measurement method
US8217677B2 (en) * 2007-07-30 2012-07-10 Manta Test Systems Inc. System and method for modulating a power supply in a relay test system
US20090058454A1 (en) * 2007-08-31 2009-03-05 Sang Bae An Device power supply extension circuit, test system including the same and method of testing semiconductor devices
US8044678B2 (en) * 2007-10-03 2011-10-25 Chroma Ate Inc. Device for simulating rectified constant impedance load and method thereof
US20090140745A1 (en) * 2007-11-30 2009-06-04 Caterpillar Inc. Power converter current sensor testing method
US8604821B2 (en) * 2009-01-13 2013-12-10 Seiko Instruments Inc. Power supply voltage monitoring circuit and electronic circuit including the power supply voltage monitoring circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130314111A1 (en) * 2012-05-22 2013-11-28 Myongji University Industry And Academia Cooperation Foundation Apparatus for testing thyristor valve
US9310421B2 (en) * 2012-05-22 2016-04-12 Lsis Co., Ltd. Apparatus for testing thyristor valve

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